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(30811) 1990 OD2

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Picture of the Day · NASA

Pathfinder on Mars

Pathfinder on Mars

2026-07-04

On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.

via NASA APOD

Wikidata facts

Instance of
asteroid
Followed by
(30812) 1990 OZ4
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
2.406
Orbital period
1251.147685225546
Show 16 more facts
time of discovery or invention
1990-07-29
discoverer or inventor
Henry E. Holt
site of astronomical discovery
Palomar Observatory
provisional designation
1997 WD1
albedo
0.278
orbital eccentricity
0.1837781711683552
orbital inclination
6.702714879272424
periapsis
1.854734022270972
apoapsis
2.689947231661855
semi-major axis of an orbit
2.272340626966414
mean anomaly
105.4213093287991
longitude of ascending node
47.40489786158358
argument of periapsis
284.1173298613751
absolute magnitude
14.9
time of periapsis
2460634.117702388
Sources (4)

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